/usr/bin/freefoam-job is in freefoam 0.1.0+dfsg-1build1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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#-------------------------------------------------------------------------------
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#
# FreeFOAM: The Cross-Platform CFD Toolkit
#
# Copyright (C) 2008-2012 Michael Wild <themiwi@users.sf.net>
# Gerber van der Graaf <gerber_graaf@users.sf.net>
#-------------------------------------------------------------------------------
# License
# This file is part of FreeFOAM.
#
# FreeFOAM is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation, either version 3 of the License, or (at your
# option) any later version.
#
# FreeFOAM is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
# for more details.
#
# You should have received a copy of the GNU General Public License
# along with FreeFOAM. If not, see <http://www.gnu.org/licenses/>.
#
# Script
# freefoam-job
#
# Description
# Run a freefoam job in background and redirect the output to a log-file.
#
#------------------------------------------------------------------------------
"""Usage: freefoam job [-s] [-p] [-log <logfile>] [-fg]
[-h, -help] <application> [OPTIONS]
Run a freefoam job in background and redirect the output to a log-file.
Options
-------
-s Also send output to the terminal
-p Parallel run of processors
-log <logfile> Specify logfile name for output, defaults to 'log'
-fg Run the job in the foreground (i.e. don't background it)
-h, -help Display this help message
<application> The FreeFOAM application to run
[OPTIONS] Arguments and options to be passed to the application
"""
import FreeFOAM.util
import FreeFOAM.run
import os
import sys
import subprocess
# want to be future proof
sys.path.insert(0, '/usr/lib/python2.7/site-packages')
from FreeFOAM.compat import *
# parse options
screen = False
parallel = False
logName = 'log'
foreground = False
application = None
args = sys.argv[1:]
while len(args) > 0:
a = args[0]
if a == '-s':
screen = True
del args[0]
elif a == '-p':
parallel = True
del args[0]
elif a == '-log':
if len(args) < 2:
sys.stderr.write('Error: The -log option requires an argument\n')
sys.exit(1)
logName = args[1]
del args[0:2]
elif a == '-fg':
foreground = True
del args[0]
elif a == '-h' or a == '-help':
print(__doc__)
sys.exit(0)
elif a[0] == '-':
sys.stderr.write('Error: unknown option "%s"\n'%a)
sys.stderr.write(__doc__+'\n')
sys.exit(1)
else:
application = a
del args[0]
break
if not application:
sys.stderr.write("Error: No application specified")
sys.stderr.write(__doc__+'\n')
sys.exit(1)
# now look for the -case option in the remaining arguments
case = '.'
for i, a in enumerate(args):
if a == '-case':
case = args[i+1]
del args[i:i+2]
break
# if we are to run in the background, fork (MUST BE FIRST!)
if not foreground:
pid = os.fork()
if pid:
# this is the parent process
sys.exit(0)
# this is the child process continuing here (if we forked)
# create the log file
if screen:
logFile = FreeFOAM.util.Tee(logName, 'wt')
else:
logFile = open(logName, 'wt')
# create the runner instance
if parallel:
runner = FreeFOAM.run.ParallelRunner()
else:
runner = FreeFOAM.run.Runner()
# run the thing (needs a bit of hackery...)
runner.run(application, case=case, parallel=parallel, args=args,
stdout=subprocess.PIPE, stderr=subprocess.STDOUT, background=True)
# retrieve the output and write it to the log file as long as the thing runs
while True:
lines = runner.getProcess().stdout.readlines()
if len(lines) and not isinstance(lines[0], str):
lines = list(map(lambda l: l.decode(), lines))
logFile.writelines(lines)
returncode = runner.poll()
if returncode != None:
break
sys.exit(returncode)
# ------------------- vim: set sw=3 sts=3 ft=python et: ------------ end-of-file
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